My three friends and I have dinner together every weekend. Each weekend, two of us cook and the other two clean up afterwards. How many different ways are there for us to choose who cooks and who cleans?

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?